Attachment for cultivators.



PATENTED FEB. 12, 1907.

No. 844,249. 0. B. CLARK.

ATTACHMENT FOR OULTIVATORS.

APPLICATION FILED AUG. 3,1906.

Z SHEETS-SHEET 1.

W MM W1 tn eases No. 844,249. PATENTED FEB. 12, 190 7.

0. B. CLARK. ATTACHMENT FOR GULTIVATORS.

APPLICATION FILED AUG. 3,1906.

2 SHEETS-SHEET 2.

J v I 4 17- Q -4-----4-'; 4 J1 ]5--\ 4E" 2 I] 5 If 20 16 UNITED STATESCYRIL B. CLARK, OF LOUISVILLE, KENTUCKY, ASSIGNOR TO B. F. AVERY &

ENT FFIGE.

SONS, A CORPORATION OF KENTUCKY.

ATTACHMENT FOR CULTIVATORS.

Specification of Letters Patent.

Patented Feb. 12, 1907.

To all w/wm, it may concern:

Be it known that I, CYRIL B. CLARK, a citizen of the United States,residing at Louisville, in the county of Jefferson and State ofKentucky, have invented certain new and useful Improvements inAttachments for Cultivators; and I do hereby declare the fol lowing tobe a full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

This invention relates to improvements in attachments for cultivators,and is particularly directed to means for adjusting and regulating thedistance apart of plow-beams of cultivators.

The invention comprises the production of a pair of cross-bars pivotallysecured together at the point of crossing, means for securing the lowerend of said bars to the beams of a cultivator, and means secured to theupper end of said bars for regulating the distance between the lowerends of said bars.

The invention further comprises the production of crossbars, meansadjustably secured to their lower ends for engaging the beams of acultivator, a wheel and threaded shaft therefor positioned between theupper ends of said bars, and oscillating trunnions mounted upon theupper end of said bars for receiving said axle for adjusting thedistance between the lower ends of the cross-bars.

The object in view is the provisions of means adapted to be operated byhand for regulating the distance between the plowbeams of a cultivator.

Another object in view is the production of a pair of cross-armspivotally secured to gether near their upper ends and means adjustablysecured to their lower ends for en gaging the beams of a cultivator andmechanism secured to the upper ends of said crossarms for regulating thedistance between the beams of a cultivator and the lower ends of thecross-arms which are secured thereto.

Another object in view is the production of a pair of cross-armspivotally secured together and rigidly secured at the pivotal point to acultivator, means adjustably secured to the lower end of the cross-armsfor engaging the plow-beams of a cultivator, and adjustable meanssecured to the upper ends of the cross-arms that is adapted to beoperated by hand and to adjust the distance between the plow-beams of acultivator without causing any of the weight of the plowbeams to restupon the cross-arms.

With these and other objects in view the invention comprises certainother novel constructions, combinations, and arrangements of parts, aswill be hereinafter fully described and claimed.

represents a perspective view of a riding-cultivator with a preferredembodiment of my invention secured thereto, certain parts of thecultivator being broken away to better disclose the invention. Fig. 2 isa side elevation of the preferred form of my invention. Fig. 3 is anenlarged detail edge view of the upper portion of Fig. 1. Fig. 4 is anenlarged detail view taken on line 4 4 of Fig. 2 looking in thedirection indicated by the arrow.

In the use of riding-cultivators it has been customary to tie the beamsof a plow together in various ways and to provide footbe desired. Themeans employed for tying the plow-beams together is commonly known as ahobble or dodge and is used so as to permit both beams to be movedsimultaneously for avoiding obstructions and the like. It has been founddesirable in these classes of inventions to have a hobble' or tyingmeans that may be adjusted so as to vary the distance of tying means,and it is to this class of devices that the present invention relates.

Referring more particularly to the drawmgs, preferably of the ridingtype. Secured to the cultivator 1 is a pair of cross-arms 2, whichembodies the present invention. As will be clearly seen from Fig. 2, thecross-arms 2 are formed of a plurality of parts and are secured togetherby any suitable means, as bolts 3 and 4. The lower ends 5 and 6 of thecross-bars 2 are preferably made straight, so that when they areattached to the beams of a cultivator and the beams are in theirvertical. Positioned upon the portions 5 and 6 are beam-clasp members 7and 8, respectively, which are adapted to reciprocate upward anddownward on the straight portions 5 and 6. The members 7 and 8,respectively, are made with a gripping portion In the accompanyingdrawings, Figure 1 rests for moving the beams of a plow as may 1indicates any suitable cultivator,

normal position the portions 5 and 6 will be 9 and are formed with abifurcation having arms 10 and 11, as will be clearly seen in Fig. 4.The portions 5 and 6 of the cross-bars 2 are adapted to pass between thearms 10 and 11 and to guide the members 7 and 8 in their movement.Pivotally secured to the outer end of the members 7 and 8 are antifrictionrollers 12 and 13. The gripping portion 9 is bifurcated, so asto form arms 14 and 15, through which passes any suitable securingmeans, as bolt 16, which is adapted to firmly hold the clamping means 9in contact with the beams'of a cultivator-plow, as will be clearly seenin Fig. 2. The respective members 7 and 8 are formed with adouble-beveled por tion 17 and 18, respectively, which is adapted toform a loose contact with the members 5 and 6. In this way the members 7and 8 are allowed a slight pivotal movement, as well as a reciprocatingmovement.

In operation when the members 7 and 8 are secured to the beams of acultivator and the same oscillate and move upward and downward slightlyon account of the uneven ness of the ground or for other causes thebeams of the cultivator will be permitted free movement in a verticalplane, because of threads. 5

the adaptability of the members 7 and 8 to reciprocate upon the portions5 and 6. It will be thus seen that the beams of a cultivator may moveupward or downward, but cannot move laterally unless the members 5 and 6are moved, which movement is caused or prevented by means secured to theupper portion of the cross-bars 2, which will be more clearlyhereinafter described.

Secured to the extreme lower ends of the portions 5 and 6 are anysuitable form of stops, as 19 and 20, forpreventing the members 7 and 8from being accidentally removed from the cross arms 2. Secured to themembers 5 and 6 are substantially L-shaped members 21 and 22, pivotallysecured together by any suitable means, as bolt 24. The bolt 24 securesthe members 21 and 22 together and at the same time secures them to asupporting-clasp 25, as will be clearly seen in Figs. 1 and 3. The clasp25 is made of any suitable shape for gripping a cross-bar positioned onany desirable type of cultivator and is adapted to be tightly secured inplace by any suitable tension means, as bolt 26. The upper ends of themembers 21 and 22 are bifurcated and are adapted to accommodateoscillating trunnions 27 and 28. The trunnions 27 and 28 are internallythreaded in opposite directions for accommodating a threaded bolt 29,which has the opposite ends threaded in opposite directionsthat is,

half of the shaft 29 is threaded with a righthand thread and the otherhalf with a lefthandthread, and the trunnions 27 and 28 are threaded toaccommodate the various Rigidly secured to the center of the shaft 29 isa hand-wheel 30, which is adapted to rotate the shaft 29 in eitherdirection for regulating the distance between the trunnions 27 and 28,and consequently the dis tance between the members 7 and 8. The wheel 30is preferably made with a number of spokes, as 31, as will be clearlyseen in Fig. 3.

Secured between any two of the spokes 31 is a weight 32, which ispreferably made in two parts and securedinplace by a bolt 33. Ifdesirable, the weight 32 may be made integral with the wheel 30. Theweight 32 is adapted to normally hold the wheel 30 from accidentalrevolving by reason of the continual jars and strains of the device whenin use, but will not interfere with the operation of the wheel 30 byhand.

By pivotally securing the cross-bars 2 together and rigidly securing thecross-bars to a cultivator at the point where the same is pivotallysecured together produces a cultivator attachment or hobble that issustained in position at all times ready to be operated upon by hand asoccasion may require. The plow-beams being secured to clamps 7 and 8,which are loosely secured to the lower ends of the cross-bars 2, permitsthe plow-beams to move upward and downward without in the leastinterfering with the same. As the lower ends of the cross-bars 2 arebrought together or spread apart it will simply effect the bars in likemanner and not in any way either raise or lower the same, but willpermit the beams and the plows attached thereto to operate in theirusual manner.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is

1. The combination with a cultivator, of a pair of cross-arms securedthereto, means for regulating the distance between the ends of saidcross-arms, clamps mounted upon the lower ends of said arms for grippingthe beams of said cultivator at any desired point,

and means for adjusting the position of the clamp on thecultivator-beams, said clamps and said arms being adapted to move saidbeams laterally without interfering with the vertical rec'iprocatorymovement of said beams. I i

2. A device of the character described, comprising a pair of cross-arms,movable means secured to the lower ends of said cross-arms fortransmitting power to the beams of the cultivatorflmeans secured to theupper ends of said arms for operating the same, a wheel for operatingsaid means, a weight secured to said wheel for normally holding the sameagainst operation, said weight being formed in a plurality of parts foreasy removal and adjustment, and means passing through said weight forholding the same in position.

3. A device of the character described, comprising a pair of cross-arms,means for opening and closing said arms, reciprocating clamps positionedonthe lower e ds of said arms for engaging the beams of a c iltivator,said clamps comprising a clamping portion, means for operating saidclamping portion, a bifurcated portion for partially inclosing the lowerends of the said cross-arms, means for permitting pivotal movement ofsaid clamp, and an antifriction-roller secured to the outer end of saidbifurcated portion for holding said clamp in position, and for providingantifriction means for said clamp.

4. A device of the character described, comprising a pair of cross-arms,means for opening and closing said cross-arms, and a pivotally-mountedreciprocating clamp positioned on the lower ends of said cross-arms andcarried thereby for gripping the beams of a cultivator, said clampcomprising a clamping portion, a bifurcated portion secured to saidclamping portion, a doublebeveled portion between said bifurcation forcontacting with said cross-arms and for permitting pivotal movement ofsaid clamp, and antifriction means secured between the outer ends ofsaid bifurcated portion opposite said beveled portion for holding saidclamp in position.

In testimony whereof I afiix my signature in presence of two Witnesses.

. CYRIL B. CLARK.

Witnesses:

H. E. HARDIN, C. W. BIRNSTIEL.

